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ACB Maintenance/Service And Testing

Air Circuit Breaker (ACB) Maintenance

To ensure your equipment operates reliably we recommend an appropriate maintenance plan. We attend sites for regular maintenance and also for emergencies when an ACB is not functioning correctly.

Schedules to suit you and your site

Each site and ACB is different. This means a service schedule is to be assessed after a discussion or visit with you. The schedule depends on the environment the ACBs operate in and how often they operate – too little use causes as much need for maintenance as excessive use.

Our service plan enables us to service your breaker in situ if fixed or withdrawable or to remove and work on it at our premises. During the service we disassemble certain elements of the ACB to allow inspection, lubrication, repair and testing. We have a range of specialized secondary injection test equipment to enable us to test the operation of the ACBs electronic trip units and their parameters.

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Distribution & Control Panel Maintenance

We also offer a complimentary service for your distribution/ control panels. We recommend periodically that the panels are cleaned inside and out to remove dirt and dust. At the same time the switchgear connections can be checked and tightened and the supply and distribution busbar connections can be re-torqued. We have seen many instances where dirt on busbars and loose connections can cause noise, excessive heat and ultimately system failure due to lack of maintenance.

Common faults we see:

  • Air Circuit Breaker will not open (turn ‘OFF’)
  • Air Circuit Breaker will not close (turn ‘ON’)
  • Air Circuit Breaker will not charge up/ reset
  • Air Circuit Breaker won’t trip off as set or required
  • Air Circuit Breaker won’t stay closed when turned on
  • Erratic / nuisance tripping off of the Air Circuit Breaker

Most of these common faults can be avoided by an appropriate service schedule.

Distribution & Control Panel Maintenance

We also offer a complimentary service for your distribution/ control panels. We recommend periodically that the panels are cleaned inside and out to remove dirt and dust. At the same time the switchgear connections can be checked and tightened and the supply and distribution busbar connections can be re-torqued. We have seen many instances where dirt on busbars and loose connections can cause noise, excessive heat and ultimately system failure due to lack of maintenance.

Common faults we see:

  • Air Circuit Breaker will not open (turn ‘OFF’)
  • Air Circuit Breaker will not close (turn ‘ON’)
  • Air Circuit Breaker will not charge up/ reset
  • Air Circuit Breaker won’t trip off as set or required
  • Air Circuit Breaker won’t stay closed when turned on
  • Erratic / nuisance tripping off of the Air Circuit Breaker

Most of these common faults can be avoided by an appropriate service schedule.